Improvement in stove-pipe elbows



s. SMITH.

Stove-Pipe Elbows.

N0,158,005, Patented DEC. 22,1875.

WITNESSES:

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UNITED STATES PATENT Onrrcn.

IMPROVEMENT IN STOVE-PIPE ELBOWS.

Specification forming part of Letters Patent No. 1 58,005, datedDccember 22, 1874 application filed April 25, 1874.

To all whom it may concern:

Be it known that I, SAMUEL SMITH, of

Brooklyn, E. D., in the county of Kings and sponding parts.

The object of my invention is to construct a strong and substantialstove-pipe elbow of rectangular shape from one piece of metal, andwithout the use of solder, so that the same can be manufactured morerapidly and economically.

The invention consists in holding the connected parts of an elbow-pipetogether by straps, forming a part of and extending from one and rivetedto the other, as hereinafter described and claimed.

In the drawing, A represents the blank for forming myrectangularstove-pipe elbow, being stamped out of suitable sheet metal, as shown inFig. 1. It is produced of two symmetrical parts, 13, which extend, withcurved inner sides, from the short central connecting part in thesymmetrical axis of the blank to the outer rectangular sides of theblank. One of V the parts, B, is provided, by preference, with three,more or less, lugs or ears, 0, which extend radially to the curved part,and are intended to be riveted to the sides and lower part of the curvedside of the second part, B, of the elbow. Each blank section B is formedin tubular pipe shape, and seamed at the edges. The pipe-sections arethen bent toward each other on the communicating central piece, untilthe curved edges of both sec tions come in accurate contact with eachother. The connecting-ears are then riveted to the adjoining section,and the joint made more complete and tight by means of a formingroller,in the usual manner.

A neat and strong elbow is thus produced in a simple and rapid manner,and a saving of time, labor, and material produced. I

Having thus described my invention, what I claim as new, and desire tosecure by Let ters Patent, is

An elbow-pipe having flap projections O on one part, and held by rivetsto the other part, as shown and described.

SAMUEL SMITH.

Witnesses:

PAUL GoEPEL, T. B. MOsHER.

